Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation

The dramatic effect of quantized vortices in superfluid helium on the rate of coalescence of suspended impurities has been predicted; such catalytic process should result in formation of fiber-like structures having primarily nanothickness. That should be valid for any impurity and it may be used as...

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Published in:Физика низких температур
Date:2009
Main Authors: Gordon, E.B., Okuda, Y.
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2009
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Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/116993
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation / E.B. Gordon, Y. Okuda // Физика низких температур. — 2009. — Т. 35, № 3. — С. 278-283. — Бібліогр.: 14 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Gordon, E.B.
Okuda, Y.
author_facet Gordon, E.B.
Okuda, Y.
citation_txt Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation / E.B. Gordon, Y. Okuda // Физика низких температур. — 2009. — Т. 35, № 3. — С. 278-283. — Бібліогр.: 14 назв. — англ.
collection DSpace DC
container_title Физика низких температур
description The dramatic effect of quantized vortices in superfluid helium on the rate of coalescence of suspended impurities has been predicted; such catalytic process should result in formation of fiber-like structures having primarily nanothickness. That should be valid for any impurity and it may be used as a base for the universal method of nanowires and nanotubes producing. The experiments on molecular hydrogen imbedding into liquid helium supported these conclusions. They showed that: (i) in normal liquid He the coalescence led to formatting spherical microparticles carried by turbulent motion of a liquid; (ii) in the superfluid only very long filaments were observed, they behaved as quantized vortices should do. These filaments are fiber-like hydrogen crystals and they survived liquid helium transition to normal state. The promises for using this phenomenon in basic and applied sciences have been outlined.
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institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
language English
last_indexed 2025-12-01T19:41:39Z
publishDate 2009
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
record_format dspace
spelling Gordon, E.B.
Okuda, Y.
2017-05-18T17:38:19Z
2017-05-18T17:38:19Z
2009
Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation / E.B. Gordon, Y. Okuda // Физика низких температур. — 2009. — Т. 35, № 3. — С. 278-283. — Бібліогр.: 14 назв. — англ.
PACS: 67.25.dk, 61.46.Km, 67.63.Cd
https://nasplib.isofts.kiev.ua/handle/123456789/116993
The dramatic effect of quantized vortices in superfluid helium on the rate of coalescence of suspended impurities has been predicted; such catalytic process should result in formation of fiber-like structures having primarily nanothickness. That should be valid for any impurity and it may be used as a base for the universal method of nanowires and nanotubes producing. The experiments on molecular hydrogen imbedding into liquid helium supported these conclusions. They showed that: (i) in normal liquid He the coalescence led to formatting spherical microparticles carried by turbulent motion of a liquid; (ii) in the superfluid only very long filaments were observed, they behaved as quantized vortices should do. These filaments are fiber-like hydrogen crystals and they survived liquid helium transition to normal state. The promises for using this phenomenon in basic and applied sciences have been outlined.
This work was supported in part by Russian Foundation
 for Basic Researches grant #07-03-00393. The authors are
 grateful to A.V. Karabulin for technical assistance and to
 Profs. I. Silvera (Harvard University), A. Weis (Fribourg
 University), and Y. Kagan (Kurchatov Centre) for valuable
 discussions.
en
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
Физика низких температур
Квантовые жидкости и квантовые кpисталлы
Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation
Article
published earlier
spellingShingle Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation
Gordon, E.B.
Okuda, Y.
Квантовые жидкости и квантовые кpисталлы
title Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation
title_full Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation
title_fullStr Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation
title_full_unstemmed Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation
title_short Catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation
title_sort catalysis of impurities coalescence by quantized vortices in superfluid helium with nanofilaments formation
topic Квантовые жидкости и квантовые кpисталлы
topic_facet Квантовые жидкости и квантовые кpисталлы
url https://nasplib.isofts.kiev.ua/handle/123456789/116993
work_keys_str_mv AT gordoneb catalysisofimpuritiescoalescencebyquantizedvorticesinsuperfluidheliumwithnanofilamentsformation
AT okuday catalysisofimpuritiescoalescencebyquantizedvorticesinsuperfluidheliumwithnanofilamentsformation